Optical system of virtual reality equipment

A virtual reality and optical system technology, applied in the field of optical systems, can solve the problems of small field of view, low energy utilization, complex structure, etc., to achieve the effect of expanding the field of view, high energy utilization, and avoiding stray light

Inactive Publication Date: 2017-08-18
上海乐蜗信息科技有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to provide an optical system for virtual reality equipment, which can solve the problems of existing virtual reality equipment such as complex structure, chromatic aberration, too small viewing angle, low energy utilization rate and stray light

Method used

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  • Optical system of virtual reality equipment

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the present invention provides an optical system of a virtual reality device, including optical units, and each optical unit sequentially includes an absorbing polarizer 2, a display screen 3, and a 1 / 8 or 1 / 4 wave plate from the side of the human eye 1 4 and mirror 5, where,

[0024] The absorbing polarizer 2 , the display screen 3 , the 1 / 8 wave plate, and the 1 / 4 wave plate 4 (phase retarder) are all optically transparent components, and the light emitted by the display screen 3 is linearly polarized light. Here, in this embodiment, the transparent display screen is arranged between the reflector and the human eye, and polarizing devices and 1 / 8 or 1 / 4 wave plates are respectively arranged on both sides of the display screen, and the display screen is set to be transparent, which can After the virtual content is reflecte...

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Abstract

The invention aims to provide an optical system of virtual reality equipment. According to the optical system, through arranging a transparent display screen between a reflector and human eyes, and respectively arranging a polarizer device and 1 / 8 or 1 / 4 wave plate at two sides of the display screen, and making the display screen transparent, a virtual content can be converted to a virtual image after reflection and be observed by the human eyes. Linear polarized light which is transmitted from the front surface of the display screen can be absorbed by an absorbing type polarizer device and does not enter the human eyes, thereby effectively isolating stray light. After the linear polarized light which is transmitted from the display screen penetrates through the 1 / 8 or 1 / 4 wave plate, be reflected by the reflector, penetrates through the 1 / 8 or 1 / 4 wave plate, penetrates through the display screen and penetrates through the absorbing type polarizer device, the linear polarized light enters the human eyes, thereby enlarging visual field angles which comprise a vertical-direction visual field angle and a horizontal-direction visual field angle. Furthermore the optical system has low chromatic aberration and higher energy utilization rate.

Description

technical field [0001] The invention relates to the field of computers, in particular to an optical system of a virtual reality device. Background technique [0002] At present, virtual reality (VR) equipment on the market mostly adopts refractive, reflective or catadioptric optical design. The geometric position of the lens is placed between the human eye and the display screen, and the human eye and the display screen are on both sides of the lens. , and the display is opaque. [0003] For the above refractive optical system, because the light passes through the lens, the same lens has different refractive indices for different wavelengths of light, which will cause chromatic aberration. For VR equipment, there are currently two solutions: the first is to increase the number of lenses, through optical means. Correct chromatic aberration, which will make the optical system complicated. The second is to correct reverse chromatic aberration through software, which has limite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0101G02B2027/0123
Inventor 谢斌
Owner 上海乐蜗信息科技有限公司
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